Details of Point data

We use point data of police stations, public schools, parks, and restaurants. These data are gotten from following data sources.

Specific examples of restaurants

Here is a map information categorized by mean income.

We can see the difference of income on each area. At Manhattan, the mean income is relatively high, and at some areas, the mean income is from 300,000 to 450,000. Here, we will compare the price levels of restaurants at several areas. We used restaruants information provided by Google Places API, and this API provides following price levels.

We will pick up Upper East Side and Harlem. Upper East Side is an example of the area with high rent(high mean income). Harlem is an example of the area with low rent(low mean income) in Manhattan.

Here is a map with price level of restaurants in Harlem area.

ggmap(map_nyc_ha, extent = "device") + 
  geom_jitter(data=ha_f, aes(lng, lat, color = price_level, size = 5), alpha = 0.5) +
  scale_colour_gradientn(colours = rainbow(2, start = 0.15, alpha = 0.5)) +
  labs(title = "Price level of restaurants in Harlem", color = "Price level", size = "Location")

As we can see at the map above, price level of restaurants at this area are relatively low. There is no restaurants which have price level 4. Most restaurants have price level 1. The average price level of restaurants at Harlem is 1.4084507.

Here is a map with price level of restaurants in Upper East Side area.

ggmap(map_nyc_ue, extent = "device") + 
  geom_jitter(data=ue_f, aes(lng, lat, color = price_level, size = 5), alpha = 0.5) +
  scale_colour_gradientn(colours = rainbow(3, start = 0.15, alpha = 0.5)) +
  labs(title = "Price level of restaurants in Upper East Side", color = "Price level", size = "Location")

As we can see at the map above, price level of restaurants at this area are relatively high. We can see that some restaurants have over price level 3. Even in Upper East Side area, there are some restaurants with price level 1. This is because chain restaurants such as Subway and Dunkin’ Donuts are also located in Upper East Side. The average price level of restaurants at Upper East Side is 2.0909091.